ITEMS FROM THE UKRAINE


YURIEV PLANT PRODUCTION INSTITUTE

National Centre for Plant Genetic Resources of Ukraine, Laboratory of Plant Immunity to Diseases and Insects, and the Department of Quality of Corn, Moskovsky prospekt, 142, 310060 Kharkov, Ukraine.

Genetic basis of bunt resistance in Ukrainian, Russian, and U.S. winter and spring wheats.

S.V. Rabinovich, E.J. Afonskaya, I.N. Chernyaeva, and E.M. Dolgova.

Resistance of T. aestivum L. to bunt (Tilletia caries (D.C.) Tul. and T. levis Kuehn.) was studied during 1991-95 by artificial inoculation. In our tests, we identified and analyzed resistance in the local bunt population in domestic and foreign cultivars. The level of bunt infection reached 9,870 infected heads in winter wheat and 99 % in one spring wheat cultivar. Seven percent of the winter wheats and 1 % of the spring wheats tested were bunt resistant.

Our earlier investigations (Rabinovich 1972; Rabinovich et al. 1968, 1993a, 1993b) in the study of the resistance in hundreds of winter wheat cultivars to local populations of bunt under artificial inoculation showed wheat cultivars from the former U.S.S.R. and European countries to be resistant. Nearly 20 % of the wheats of the U.S. (of more than 200 tested) are resistant. The disappointing results from breeding cultivars resistant to bunt, including in the Ukraine, are due to the limited number of effective genes for resistance and the low breeding value of the donors and sources of resistance.

Babajants et al. (1990) reported that the genes Bt5, Bt9, and Bt1O give high resistance, and Bt6 moderate resistance to cultivars grown in southern Ukraine. Shmidt and co-workers (1969) reported that the gene Bt6 is on chromosome lB and is linked to Bt4. The cultivar Zarya, with the BtZ gene for resistance from A. glaucum, became susceptible to some races of the pathogen in southern Ukraine. At the same time, Zarya and its derivatives are resistant in our tests in eastern Ukraine. Under these conditions, Bt2 and Bt4 are also effective.

To understand the genetic basis of resistance, we analyzed the pedigrees of resistant cultivars, which were published in the following journals: Journal of the American Society of Agronomy, Agronomy Journal, Crop Science (last 35 years of crop registrations), and the Canadian Journal of Plant Science (licensed new cultivars). We also surveyed books by S.V. Rabinovich, 1972; V.F. Dorofeev et al., 1976; and A.C. Zeven et al., 1976, 1991. With respect to wheats with known resistence genes to bunt and loose smut, we examined the publications by R.A. McIntosh, 1988, and V.I. Krivchenko, 1984, 1988. These works allowed us to identify some new resistance sources of different genetic origin.

Winter wheat. The Ukrainian line Ferrugineum 220-85 (FERR; pedigree: Lerma Rojo 64 (LR, Mexico)/Kavkaz (KVZ, Russia)//Koral odesky (T. durum winter wheat)) possesses high bunt and loose smut resistance (Babajants et al. 1990). Ferrugineum 220-85 has two new dominant genes for bunt resistance, which are as effective as genes Bt5, Bt9, and Bt10. The results of hybridization tests suggest that this wheat has another gene, possibly Bt1 or Bt10. Probably, the genotype of FERR 220-85 is BtX BtX BtY BtY, where X and Y are genes for bunt resistance. The gene names will be assigned after we determine their chromosomal location.

The bunt-resistant cultivars Moscowskaya 642, Moscowskaya 70, and Nemchinovskaya 25 and the moderately resistant Inna and Pamyati Fedina were released by the Research Institute for Agriculture of Central Nechernozem Zone of Russia (Nemchinovka) in 1990. These cultivars also are resistant to loose smut. These characteristics were selected from the cultivars Zarya (pedigree: Mironivska 808/Line 126-65 (PPH 599/pollen mixture from different cultivars)) and Yantarnaya 50, a selection out of Zarya, which were released in the 1970s. Both of these lines have high bunt (BtZ, Krivchenko 1984) and loose smut resistance. In Zarya and Yantarnaya 50, the loose smut-resistance gene is from A. glaucum, bred into cultivar PPH 599 (a wheat/couch-grass hybrid with the pedigree: Zvezda-Kharkivska 46 (a spring T. durum wheat)/A. glaucum//Mironivska 808/Lutescens 329) and released in 1992.

The cultivar Moskwa B3251, CI 9342, from the National Small Grains Gerplasm Research Facility, was resistant to bunt in our tests. This wheat, named Erythrospermum 03251 (Moskowka 3251), was developed by D.L. Rudzinsky in 1913 at the Moscow Agricultural Academy (named after K.A. Timiryazev) and cultivated from 1929ñ39. The variety was selected in a field of the durum wheat Tawtuchy, in the Kutaisy region of west Georgia.

North American wheats are valuable material for use in breeding programs in the Ukraine. Hard red winter wheats are of more interest as sources of disease resistance than the soft red winter wheats and, particulary, soft white wheats. Useful wheats from the U.S., bred in the 1980s, that are moderately resistant to bunt include: the Montana HRWW Winridge (pedigree: Burt (Bt1, Bt4, Bt6)/PI 178383 (Bt9, Bt10)) and lines derived from `Turkey//Winalta' and `Canada/Crest'; the Washington SWWW `Madsen' (VPM 1/Moisson) and a line from `FRA//2*Hill 81 (Yamhill/Hyslop (Bt1, Bt4))'; and two lines selected from similar crosses in Oregon. Winridge and both Oregon lines also are immune to loose smut. The last three wheats (sibs of VPM 1, from VPM 17 from France) also are immune to loose smut in our tests. These lines probably inherited the smut resistance not only from Hyslop, resistant in our conditions, but also from the French line VPM 1 (Ae. ventricosa/T. cartlicum //Marne). Resistance genes for four diseases (including three new genes) Lr37, Sr38, Yr17, and Pm4b, were identified in this line (Bariana and McIntosh, 1994). We are continuing this research.

According to the data, some wheats are resistant to loose smut and bunt. Among them are HRWWs selected in Nebraska, NS 68513 (Bt4, Bt6, and Bt7); Crest from Montana (Bt9 and Bt10); McCall from Washington (Bt1 and Bt4); from Idaho, Itana 65, selected from Itana (Bt1, Bt2, and Bt7), Ark (Bt1, Bt4, Bt6, Bt7, Bt9, Bt10), Franklin (Bt7, Bt9, and Bt10), Ranger (Bt9 and Bt10, and also in the pedigree are Bt7 and Hope), Jeff (Bt9 and Bt10 and also in the pedigree are Bt1, Bt2, Bt4, Bt6, and Bt7. Among the SRWWs resistant in our tests were: North Carolina cultivars Blueboy (Bt1, Bt3, and Bt6) and Blueboy II (same genes as in Blueboy and A. elongatum) and the Indiana line Purdue 39120A-4-10-10-1 (Bt1, Bt2, and Bt5, A. elongatum, and resistance to loose smut from Trumbull and Hope). The last line is a sib of the leaf rust-resistant cultivar Agrus (Lr19).

Spring wheat. Only three cultivars, from the more than 300 tested, were resistant to bunt. Some wheats were moderately resistant. Among the resistant cultivars were the Ukrainian cultivars Kharkivska 8 (a Kazkhstanian wheat derived from PPH 56 and A. glaucum and Selkirk from Canada); Kharkivska 22 (a derivative of the Tunisian cultivar Ariana 8 `Florence (Bt3)/Aurore 588'); and the Mexican wheat INIA 66 (derived from the North American wheats Hope and Thatcher). Of interest are the parents of Ariana 8 and Florence (derived from Fife) and Aurore (from Ladoga), selected by W. Farrer in Australia at the beginning of the 1900s, which are derivatives of Ukrainian and Russian wheats, respectively. Both Ukrainian wheats also are resistant to loose smut. The cultivar Kazakhstanskaya 19 is moderately resistant to bunt.

High resistances to bunt and loose smut were found in Samara's wheat Bezentchuokskaya 98 [pedigree: DC II 21-44, (U.S.)/BG 47 (selected from a local wheat)]. The same resistances were found in the cultivar Zhiguljovskaya (from the cross winter wheat `Bezostaya 1/Bezentchuokskaya 98'). The source of these resistances is probably DC II 21-44, a sister line of Thatcher.

The U.S. cultivar Penewana (WA 6920; pedigree: Potam 70 (a derivative of Hope and Thatcher) and a line from the cross of `Mexico/Fielder' (Bt1, Bt3, Bt4, Bt6, and Bt7) also were resistant in our tests. Lines from two other states, ND 607 and SD 8036 were moderately resistant to bunt. SD 8036 was derived from Hussar (Bt1, Bt2, and Bt5) and Thatcher.

References.

Babajants LT. 1988. Sources and donors of wheat and barley resistance to the main diseases. Metody selektsii i ozenky ustojchivosty psenitsy i jachmenya k bolesnjam v stranach - chlenach SEV. Praha p. 287-318. (In Russian).

Babajants LT and Dubinina LA. 1990. New donor of wheat resistance to bunt (Tilletia caries (DC) Tul.; T. levis Kuehn.) and its genetical basis. Genetica 26(12):2186-2190 (In Russian).

Bariana HS and McIntosh RA. 1994. Characterisation and origin of rust and powdery mildew resistance genes in WPM 1 wheat. Euphytica 76:53-61.

Caldwell RM and Compton LE. 1947. Inheritance of resistance to loose smut of wheat Ustilago tritici in the varietal cross Trumdull x Wabash. Phytopath 41(1):4.

Dorofeev VF, Jakubziner MM, Rudenko MM, et al. 1976. Wheats of the World. Leningrad, "Kolos". 487 pp. (In Russian).

Heine EG and Hansing ED. 1955. Inheritance of resistance to loose smut of wheat in the crosses of Kawvale x Clarkan. Phytopath 45(1):8-10.

Krivchenko VI. 1984. Resistance of ear-forming grain crops to agents of smut diseases. Moskwa, ìKolosî. 303 pp. (In Russian).

Krivchenko VI. 1988. Genes for resistance to bunt and loose smut. Katalog mirovoy rollektsii VIR: Sorta zernovych kultur s genamy ustojchivosty k grybnyn boleznjam. Leningrad, S. pp. 25-28 (In Russian).

Lyfenko SF, Litvinenko NA, and Babajants LT. 1990. Results and perspectives of winter wheat breeding in resistance to diseases. Problemy povyshenja ustojchivosty zernovyh kultur i podsolnechnika k boleznjam i vreditelyam. Sbornik nauchnyh trudov. Odessa, VSGI. pp. 5-15 (In Russian).

McIntosh RA. 1988. A cataloge of gene symbols for wheat. In: Proc 7th Inter Wheat Genet Symp (Miller TE and Koebner RMD eds). Inst Plant Sci Res, Cambridge, UK. pp. 1197-1254.

Pabinovich SV. 1972. Modern cultivars of wheats and its pedigrees. Kiev, "Urozay". 328 pp.(In Russian).

Rabinovich SV, Grechko IY, and Gromyko GN. 1968. Winter and spring wheat resistance to bunt. Selektsia i semenovodstvo. Kiev, ìUrozayî 10:97-104 (In Russian).

Rabinovich SV, Afonska OJ, Kravchenko AB, et al. 1993a. Initial material in breeding of spring wheat. Selektsia i nasinnytstvo. Kiev, ìUrozayî 74:32-38 (In Ukrainian).

Rabinovich SV, Chernyaeva IM, Kapustina TB, et al. 1993b. Initial material in breeding of winter wheat. Selektsia i nasinnytstvo. Kiev, ìUrozayî 74:44-49. (In Ukrainian).

Tingley DC and Tolman B. 1934. Inheritance of resistance to loose smut in certain wheat crosses. J Agric Res 48(7):631-655.

Zeven AC and Reiner L. 1991. Geneologies of 3,200 wheat varieties: A supplement to geneologies of 14,000 wheat varieties. Institute of Plant Breeding I.V.P., Agricultural University, Wageningen, The Netherlands and Crop Husbrandry, Technical Universitat Munich Freising, Weihanstephan, Germany. Vergal Eugen Ulmer Stuttgart. 79 pp.

Zeven AC and Zeven-Hissink NC. 1976. Geneologies of 14,000 wheat varieties. Institut of Plant Breeding I.V.P., Agricultural University Wageningen, The Netherlands. 117 pp.